#define _CRT_SECURE_NO_WARNINGS 1

#include <stdio.h>
#include <string.h>
#include <assert.h>

int main()
{
	char str1[20] = "3425588767@qq.com";
	const char str2[20] = "@.";
	for (char* ret = strtok(str1, str2); ret != NULL; ret = strtok(NULL, str2))
	{
		printf("%s\n", ret);
	}

	return 0;
}